From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Official order for 2 dozen R.12 sparking plugs.
| Identifier | ExFiles\Box 35\3\ scan 182 | |
| Date | 6th December 1927 | |
| To Roy.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} X4196 Hsl/LG6.12.27. We have instructed our man Gibson in London to obtain 2 doz. R.12 sparking plugs from The Champion Plug Co. Will you please arrange to send them an official order. Hs.{Lord Ernest Hives - Chair} | ||